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PEG-20 HYDROGENATED CASTOR OIL TRIISOSTEARATE.

Valuable CAS 188734-82-9 / SURFACTANT - EMULSIFYING, VISCOSITY CONTROLLING

PEG-20 Hydrogenated Castor Oil Triisostearate is a sophisticated ethoxylated lipid, primarily valued for its dual functionality as an emulsifier and surfactant in skincare formulations. It expertly stabilizes oil and water phases, contributing to superior product texture and delivering a discernible moisturizing effect.

Summary

Emulsifier Surfactant Moisturizer

Science

Mechanism of Action

This ingredient operates as a highly effective emulsifier and surfactant, enabling the seamless and stable integration of oil-based and water-based components within a formulation. This action ensures product homogeneity and enhances sensory attributes, such as texture and spreadability. As a surfactant, it may also play a role in optimizing the epidermal penetration of other active ingredients and supporting the skin's intrinsic barrier function, while also imparting a hydrating benefit.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

No data pertaining to the phenomenon of 'dusting' for PEG-20 Hydrogenated Castor Oil Triisostearate was identified in the available research.

The Formula

Formulation

Solubility
Both
Optimal pH 4 – 9
0 7 14

Stability

The ingredient exhibits good stability within a pH range of 4.0 to 9.0, accommodating neutral, mild acidic, and mild alkaline conditions. However, it is susceptible to hydrolysis under strongly acidic or strongly alkaline environments. Formulations should also strictly avoid contact with strong oxidizing agents due to potential reactivity.

Conflicts

  • strong acids
  • strong alkalis
  • strong oxidants

Safety

Safety Profile

CIR Status
Safe with restrictions
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has determined PEG-20 Hydrogenated Castor Oil Triisostearate, along with numerous related PEGylated oils, to be safe for use in cosmetics when formulated to avoid irritation. Careful manufacturing processes are required to ensure controlled levels of 1,4-dioxane, a potential ethoxylation by-product. This ingredient is generally recognized as acceptable under European Union cosmetic regulations and has FDA allowance for certain indirect food additive applications.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

PEG-20 Hydrogenated Castor Oil Triisostearate is a valuable ingredient, providing essential emulsifying and surfactant capabilities that enhance product stability and skin feel, with a generally low risk when formulated to industry safety standards.

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